Experimental:TOP to POP

Summary

Position and Active is a shortcut for P in RGB, and alpha is set to 1 for active pixels (pixels with a valid attribute value).

Using Custom you specify which attribute and components you want in the RGBA of the TOP, so max 4 could be P(0) Color(2) N(1) P(2).

When you Use Dimension all pixels are active since the resolution matches the TOP When using the other modes you can end up with unused pixels (you have 40 points, fit to square gives you 7x7, so you end up with 9 unused pixels), alpha is only set to 1 for used pixels.

toptoPOP_Class

Parameters - Inputs Page

First RGBA Contains rgba - ⊞ -

• Color color -

• Position and Active pactive -

• Depth depth -

• Height height -

• Custom custom -

• Position (RGB) pos -

Max Number of Points maxpointsenable -

Number of Points maxpoints -

TOP input -

TOP input0top -

Channel Scope input0chanscope - ⊞ -

• r r -

• g g -

• b b -

• a a -

Attribute Scope input0attrscope - ⊞ -

• P P -

• P.i01 P.i01 -

Filter input0filter - ⊞ -

• Nearest Pixel nearest -

• Interpolate Pixels linear -

• High Quality Resize highquality -

New Attribute attr -

New Attribute Name attr0name - ⊞ -

• Custom custom -

• N n -

• Color color -

• Tex tex -

• PointScale pointscale -

• LineWidth linewidth -

Custom Name attr0customname -

New Attribute Type attr0type - ⊞ -

• float float -

• double double -

• int int -

• uint uint -

• vector vector -

• dvector dvector -

• dir dir -

• dbl dir ddir -

New Attribute Number of Components attr0numcomps - ⊞ -

• 1 1 -

• 2 2 -

• 3 3 -

• 4 4 -

New Attribute Default Value attr0defvalue - ⊞ -

• New Attribute Default Value attr0defvalue1 -

• New Attribute Default Value attr0defvalue2 -

• New Attribute Default Value attr0defvalue3 -

• New Attribute Default Value attr0defvalue4 -

Parameters - Detail Page

Connectivity surftype - ⊞ -

• None none -

• Lines lines -

• Line Strips linestrips -

• Triangles triangles -

• Alternating Triangles alttriangles -

• Quadrilaterals quads -

• Point Prims points -

Line X/Y/Z line - ⊞ -

• Line X/Y/Z line1 -

• Line X/Y/Z line2 -

• Line X/Y/Z line3 -

Plane XY/YZ/ZX plane - ⊞ -

• Plane XY/YZ/ZX plane1 -

• Plane XY/YZ/ZX plane2 -

• Plane XY/YZ/ZX plane3 -

Unique Points uniquepoints -

Center t - ⊞ -

• Center tx -

• Center ty -

• Center tz -

Override Size overridesize - ⊞ -

• Override Size overridesize0 -

• Override Size overridesize1 -

• Override Size overridesize2 -

Size size - ⊞ -

• Size size1 -

• Size size2 -

• Size size3 -

Override Resolution overrideres - ⊞ -

• Override Resolution overrideres0 -

• Override Resolution overrideres1 -

• Override Resolution overrideres2 -

Resolution res - ⊞ -

• Resolution resx -

• Resolution resy -

• Resolution resz -

Pixel Sampling Location pixelsamplingloc - ⊞ -

• Edge to Edge edgetoedge -

• Pixel Centered pixelcentered -

Texture Coordinates texture - ⊞ -

• None none -

• Point point -

• Vertex vert -

Append Dimension dimension - ⊞ -

• When Rows Cols Slices > 1 morethanone -

• Always for Rows Cols rowscolsalways -

• Always for Rows Cols Slices rowscolsslicesalways -

Parameters - Depth Page

Rerange from rerangefrom - ⊞ -

• Rerange from rerangefrom1 -

• Rerange from rerangefrom2 -

Rerange to rerangeto - ⊞ -

• Rerange to rerangeto1 -

• Rerange to rerangeto2 -

Camera camera -

Override Camera View overridecamera -

View Angle Method viewanglemethod - ⊞ -

• Horizontal FOV horfov -

• Vertical FOV vertfov -

• Focal Lengths focallengths -

FOV Angle fov -

Focal Length (Fx, Fy) focallengths - ⊞ -

• Focal Length (Fx, Fy) focallengths1 -

• Focal Length (Fx, Fy) focallengths2 -

Optical Center (Cx, Cy) center - ⊞ -

• Optical Center (Cx, Cy) center1 -

• Optical Center (Cx, Cy) center2 -

Delete Near Points deletenear -

Near Depth depthnear -

Delete Far Points deletefar -

Far Depth depthfar -

Parameters - Height Page

Displacement Scale dispscale -

Parameters - Common Page

Bypass bypass -

Delete Input Attributes delinputattrs -

Parameter Color Space parmcolorspace - ⊞ - Controls how all color parameters on this node are interpreted. The color values as treated as being in the selected color space, and are converted to the Working Color Space before they are used as part of the node's operation. Note that this does not change the color space of the node itself, as that is always in the Working Color Space.

• sRGB srgb - sRGB color space, with sRGB transfer function. Considered an SDR color space with respect to Reference White.

• sRGB - Linear srgblinear - sRGB color space, with linear transfer function. Considered an SDR color space with respect to Reference White.

• Rec.601 (NTSC) rec601ntsc - Rec.601 with NTSC primaries color space, with Rec.601 transfer function. Considered an SDR color space with respect to Reference White.

• Rec.709 rec709 - Rec.709 color space, with Rec.709 (same as Rec.2020) transfer function. Considered an SDR color space with respect to Reference White.

• Rec.2020 rec2020 - Rec.2020 color space, with Rec.2020 (same as Rec.709) transfer function. Considered an HDR color space with respect to Reference White.

• DCI-P3 dcip3 - DCI-P3 color space, with D65 white point and 2.6 gamma transfer function. Considered an HDR color space with respect to Reference White.

• DCI-P3 (D60) dcip3d60 - DCI-P3 "D60 sim" color space, with D60 white point, and 2.6 gamma transfer function. Considered an HDR color space with respect to Reference White.

• Display-P3 (D65) displayp3d65 - Display-P3 color space, with D65 white point, and sRGB gamma transfer function. Considered an HDR color space with respect to Reference White.

• ACES2065-1 aces2065-1 - ACES 2065-1 (also known as ACES AP0) color space, with a linear gamma transfer function. Considered an HDR color space with respect to Reference White.

• ACEScg acescg - ACEScg (also known as ACES AP1) color space, with a linear gamma transfer function. Considered an HDR color space with respect to Reference White.

• Passthrough passthrough - When selected, the color values will be used as-is in the operation, without any modification or attempt to convert them into the Working Color Space.

Parameter Reference White parmreferencewhite - ⊞ - When converting a parameter color value to the Working Color Space, this controls how it should be treated with respect to Reference White. If the Working Color Space is the same Reference White, then no adjustment is done. If they are different, then the Reference White level (brightness) of this color will be adjusted to the range expected by the Working Color Space. For example if the project is set to have a SDR Reference White of 120 nits, and the HDR Reference White is 80 nits, then a color of (1, 1, 1), which is 120 nits in the SDR color space, will be converted to be (1.5, 1.5, 1.5), which is 120 nits still in the HDR Working Color Space.

• Default For Color Space default - Will use either the SDR or the HDR Reference White, based on the color space selected.

• Standard (SDR) sdr - Will treat the Parameter Color Space as SDR for it's reference white value.

• High (HDR) hdr - Will treat the Parameter Color Space as HDR for it's reference white value.

Info CHOP Channels

Extra Information for the TOP to POP can be accessed via an Info CHOP.

Common Operator Info Channels

• total_cooks - Number of times the operator has cooked since the process started.

• cook_time - Duration of the last cook in milliseconds.

• cook_frame - Frame number when this operator was last cooked relative to the component timeline.

• cook_abs_frame - Frame number when this operator was last cooked relative to the absolute time.

• cook_start_time - Time in milliseconds at which the operator started cooking in the frame it was cooked.

• cook_end_time - Time in milliseconds at which the operator finished cooking in the frame it was cooked.

• cooked_this_frame - 1 if operator was cooked this frame.

• warnings - Number of warnings in this operator if any.

• errors - Number of errors in this operator if any.

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An Operator Family that creates, composites and modifies images, and reads/writes images and movies to/from files and the network. TOPs run on the graphics card's GPU.

A parameter in most CHOPs that restricts which channels of that CHOP will be affected. Normally all channels of a CHOP are affected by the operator. TOPs have Channel Mask, a similar feature.

Operators that need 1 or more inputs are called Filters in TouchDesigner, like a Math CHOP. See Generator.

Each SOP has a list of Points. Each point has an XYZ 3D position value plus other optional attributes. Each polygon Primitive is defined by a vertex list, which is list of point numbers.

The width and height of an image in pixels. Most TOPs, like the Movie File In TOP can set the image resolution. See Aspect Ratio for the width/height ratio of an image, taking into account non-square pixels.

A sequence of vertices form a Polygon in a SOP. Each vertex is an integer index into the Point List, and each Point holds an XYZ position and attributes like Normals and Texture Coordinates.

An operator whose Bypass flag is set does nothing: All data going into its first input appears at its output unaffected.

Information associated with SOP geometry. Points and primitives (polygons, NURBS, etc.) can have any number of attributes - position (P) is standard, and built-in optional attributes are normals (N), texture coordinates (uv), color (Cd), etc.

A Link. The grey dashed lines between nodes is a Reference or Link that indicates one operator is getting data from another operator from any Operator Family.

The grey dashed lines between nodes is a Reference (or Link). A Reference is (1) a Parameter Reference, a parameter in an OP that is a name or path to another operator, (2) a Node Reference, an expression in a parameter or DAT script that contains the name or path of another operator, (3) a DAT Cell Reference or (4) a CHOP Channel Reference.

A Link or Reference is a dashed line between nodes that represent other data flowing between nodes. Examples are CHOP Exports, node Paths in parameters, and expressions in parameters referencing CHOP channels, DAT tables and other nodes. In contrast is a Wire that connects nodes in the same Operator Family.

A parameter reference can be setup between any two parameters by putting an expression in one parameter that refers to another parameter. This creates a Link between the two parameters such that when one changes, the other will change automatically (known in other software as a "constraint").

An Operator Family which operate on Channels (a sequence of numbers (Samples)) which are used for animation, audio, mathematics, simulation, logic, UI construction, and data streamed from/to devices and protocols.